FocusNode Explained | Flutter for Web Developers

What’s FocusNode?

FocusNode class is an object that can be used by a stateful widget to obtain the keyboard focus and to handle keyboard events.

Check the official documentation for more.

FocusNode explained for Web Developers

FocusNode objects are persistent and form a focus tree representing the widgets in the hierarchy that are interested in focus. They can be managed directly or through utility widgets like Focus and FocusScope. This is somewhat similar to how focus management works in web frameworks like React, Angular, and Vue, where components can manage their own state and respond to user interactions. However, FocusNode is specifically tailored for Flutter’s widget tree and its unique rendering model.

Example Code

Here is an example of how to use FocusNode:

flutter create --sample=widgets.FocusNode.1 mysample

FocusNode Remarks

FocusNode is essential for managing focus in Flutter applications, allowing for efficient keyboard event handling and focus traversal.